Author Archives: Shawn

Shawn

About Shawn

He's just this guy, you know?

Year and a Day

Personally, I subscribe to the “one year and one day” concept in matters of learning a vocation, skill, belief, or hobby. During that period, a person is considered an initiate, a neophyte, a newbie. They may know a few things, but they’re only learning. They can’t be promoted to higher levels of trust during this lockout period; they have to pay with time and dedication. By no means are they to be considered a journeyman or a master of their class.

So January 20 came and went, and I forgot to write up a thing. January 20 is the one year anniversary of my first amateur radio grant, a Technician Class license (General Class upgrade came in April). I’ve been a ham for over a year and a day. I’ve gone through a heavy bit of learning by the books to shore up my knowledge and comprehension of radio communications, but the true learning comes by experience. I have to actually do the thing to know the thing, and this past year has been a lot of that.

I wish I knew more, did more, understood more, talked more, made more contacts. Even at my age, I feel like I still need to earn my stripes to gain some levels of respect in myself and from others. If I’m going to be talking the talk, I better be walking the walk. People ask me for advice, but more than half of it isn’t backed by any personal experience. Without experience, I’m just a blustery blunderbuss spouting off what I believe to be true. In the back of my mind, I can feel the real pros rolling their eyes when they listen in.

On my anniversary evening, I was asked to host the AARC ElmerNet because the usual host, Jeff N5MNW, was down with illness. I was glad for the privilege to do so, and thankful that he thought well enough of me to ask for a fill-in. I think it’s apropos that this happened on my year-and-a-day.

I’m no longer an initiate. I’m set loose from the nest to fly on my own. Learning is life-long.

So, from my QTH, to the F2 layer, and down to you all. 73.

Ice, Your Only Rivers Run Cold

At the end of an Austin ice storm. Couped up at home all day, working through VPN, bored to tears. Streets were slick and icy earlier, but the stiff dry wind has made all the ice disappear. Now it’s just bitter cold.

Couped up inside. I need some wind to evaporate the ice keeping me stuck. I’d like a full thaw, some warmth, some heat, those would be nice. Anything to loosen my stasis is welcome.

Walk on by, walk on through, walk to your own and don’t look back, for here I am.

Red Hot Radio

As it turns out, just like in audio engineering, in 2-way radio you can’t just look at the power meter and assume your signal is great. It might actually be unintelligible.

Back in my early days (6 months ago), I noticed that my RF power meter seldom hit 100W on voice. I know that the duty cycle of voice on sideband is significantly less than 100%, but even the peaks weren’t hitting it. Frustrated with apparently not getting my signal out of the region, I turned on the built-in audio compressor, tweaked the compression amount, and got that average power a bit higher to somewhere that looked right.

As I learned recently on the regional AARC 10-Meter Net (Sundays 3pm CT on 28.410MHz USB), my fellow net participants complained that there must be some RF feedback into my mic or something because my vocal peaks were seriously hot and distorted. They had been complaining for a few weeks, and I assumed it was some insufficient grounding in my car. While discussing it during a net, I mentioned that I had compression turned on; they asked me to turn it off, and the distortion went away.

Huh!

So, uh, remember that owner’s manual thing, and the part in it that tells the owner how to configure mic gain and compression? Yeah, so if I follow that, and look at the ALC (audio level control) meter instead of the RF power meter, and if I adjust things so the average and peaks stay within a specified range, then my signal should sound better.

I hooked up my dummy load, went to 10m sideband, spoke gibberish into the mic and tweaked the mic gain and compression amount to a range that makes sense (at least visually). I’ll try an A/B test on the next 10m net to see if it worked.

It’s not the output power that wins friends and gains contacts; it’s the signal quality. You can reach across the country on 10W if your antenna is good, the sky is right, and your signal is clean. Otherwise, you’re splattering your distorted RF energy across the band, you’re burning battery power, and you’re wasting someone else’s time.